Brush making machine



w. D. LIPPs 1,888,353

BRUSH MAKING MACHINE Nov. 22, 1932.

Filed Feb. 16. 1952 G Sheets-Sheet 1 NOV. 22, W D Llpps BRUSH MAKINGMACHINE Filed Feb. 16, 1952 6 Sheets-Sheet 42 :Ir 1 kw lw,

Npv. 22, 1932. w D. LlPPs 1,888,353

l BRUSH MAKINGMACHINE Filed Feb. 1e", 19:52 e sheets-sheet s Nov. 22,1932. w. D. LlPPs BRUSH MAKING MACHINE Filed Feb. 16, 1932 6Sheets-Sheet 4 Nov. 22, 1932. wxD. LlPPs BRUSH MAKING MACHINE Filed Feb.16, 1952 6 Sheets-Sheet 5 No. z2, 1932. W, PPS 1,888,353

BRUSH MAKING MACHINE Filed Feb. 16, 1932 6 Sheets-Sheet 6 J'- ad a;

(if l Patented Nov. 22, 1932 NTD STATES PTENT OFFICE;

`WLLIAIV D. LIPPS, OF FREDERICK, MARYLAND, ASSIGNOR T OX FIBRE BRUSHCOM- PANY, ING., 0F NEVI YORK, N. Y., .A CORPORATION GF DELAWARE BRUSHMAKING LIACHINE Application led February 16, 1932. Serial No. 593,Z72.

This invention relates to brush machines whereby brush backs are boredand wisps of libre or bristles are successively removed from a magazineand transferred to a station where each succeeding wisp is seated in ahole of a brush bach and therein fastened by means of a wire staple.

The invent-ion is more particularly designed for use in connection withmachines for making floor sweeps and window and other brushes havingrelatively long flexible bristles with short folded butt portions whichsecured to the brush back.

The object of the invention is to provide simple and ecient mechanismwhereby the tufts are inserted and stapled in the brush back with theupstanding butts of the respective tufts inwardly disposed at all pointsthroughout the area of the bach.

Another object of the invention is to provide pneumatic means wherebyduring the insertion and stapling of each succeeding tuft in the brushbach the opposing previously inserted tuft, irrespective of thedirection of travel ofthe brush baclr, is moved from the active path ofthe tuft inserting and stapling devices to permit such deviceseffectively to perform their respective functions.

T.Vith these and other objects in View my invention comprises novelfeatures of construction and combinations of parts which will behereinafter described; the scope of the invention being expressed in theappended claims.

ln the drawings- Figure l is a side elevation of a brush malrg machineembodying my invention7 showi g the relation of the parts when thevertical cam element for effecting the operation of the mechanism forpartially rotating the tuft-setting spindle is in open or inactiveposition.

F 2 is a similar view, enlarged, of a portion of the machine, showingthe relation of the parts when the said cam element is in closed oractive position. In this view the spindle is shown in its down strokeand withits turning mechanism under the influence of the vertical camelement.

Fig. 3 is a view .similar toFig. 2, butJ looking from the opposite sideof the machine and showing in addition the bristle magazine and feeder.ln Fig. 3 the turning mechanism for the descending spindle is shown asinitially engaged with the vertical cam element.

Fig. 4 is a view similar to a portion of Fig. but showing the spindle atthe limit of its upward stroke.

Fig. 5 is a transverse vertical section7 through the supporting frameadjacent the spindle, as on the line 5 5 of Fig. Il.

Fig. 6 is a transverse horizontal section through the supporting framein a plane through the spindle and the vertical cam element, ason theline 6--6 of Fig. l.

Fig. 7 is a horizontal section in a plane directly above the pneumaticcontrol valves, as on the line 7--7 of Fig. 2.

4ig. 8 is a detail, in perspective, of the valve actuating devices. Y

Fig. 9 is a similar view of the vertical cam element and actuating meanstherefor.

Fig. 10 is a sectional elevation of a. portion of the spindle. ascarrying a staple and bristles to a brush back, when the back is beingadvanced to the right during the filling operation, showing the stapledriver and the tuft clamping lever, and also the air-blast nozzles andthe action of the air-blast from one of the nozzles upon an opposingtuft previously inserted in the back.

Fig. l1 is an elevation similar to Fig. 10 of the lower portion of the.spindle and adjuncts when the back is being advanced to the left duringthe filling operation, showing the action of the air-blast from theother nozzle upon an opposing tuft.

Fig. 12 is a view of the lower bifurcated end of the spindle, showingthe staple bending anvil in section with a staple formed thereon andseated in the spindle.

Fig. 13 is a section of a part of a brush back showing a positioned tuftas fastened thereto by the staple.

Fig. 14 is a plan of a brush back showing the disposition of the tuftreceiving holes therein.

Fig. 15 is a diagrammatic view of one end of the back, showing theangular disposition of the butts of the tufts and the sta-ples therefor,which tufts, for the sake of clearness, are represented in horizontalrelation to the brush back with a series of end tufts as positionedthereon preparatory to stapling.

Referring to the drawings, 2() designates the supporting frame of abrush making machine; 21 designates a driven shaft and 56 designates apattern cam mounted on the shaft.

22 designates a table on which the block 23 to form the brush back issupported, which table is intermittently actuated through suitableconnections with the pattern cam, to feed the brush back to the activepaths of boring and tuft setting mechanisms, respect1vely. The lattermechanism includes a reciprocative vertical element 24 having at itslower or active end a bifurcated staple-forming and bristle-receivingportion, and also containing a staple driver which is independentlyreciprocable in and longitudinally of said element.

25 designates a bristle-containing magazine, and 26 a horizontallyreciprocative feeder by means of which quantities of bristles aresuccessively separated from the mass in the magazine and transferred tothe tuft setting position.

Wire is intermittently fed to an anvil 27 which is periodicallyreciprocated to and from .the vertical path of the element 24 in suchmanner that the bifurcated portion of the latter in its initial downwardmovement bears upon a section of wire and bends it over the anvil toform a staple 28 which is snugly seated in such portion, as seen in Fig.12. In the continued descent of the said element until its bifurcatedportion bears against the brush back, the stapl-e is caused to straddlethe end portion of a tuft of bristles positioned thereunder by thefeeder 26. Thereupon the driver is forced downward to impinge againstthe staple and drive it into a hole of the brush back. The staple in itsdescent doubles the end of the wisp and carries it into and fastens itin the hole of the brush back.

With the exception of certain novel features hereinafter described ofthe staple forming and tuft setting mechanism, the various mechanismshereinbefore referred to are or may be of the general characterdescribed in the Young Patents Nos. 578,997 and 664,989, dated March 16,1897 and January 1, 1901, respectively.

In previous machines the vertically reciprocative staple forming andtuft setting element was moved at all times in a straight path, whereasin accordance with one feature of the present invention the said elementis partially rotatable about its vertical axis in such manner as toposition the tufts and their associated staples in different angularrelations in the brush back as required, thus enabling the folding ofeach wisp of bristles adjacent one end thereof and the introduction ofthe folded end in the back with the butts of the bristles inwardlydisposed at all point-s throughout the area of the brush back. (See Fig.15.)

The form of tuft setting mechanism herein illustrated includes twovertically movable heads 29 and 30 which are slidably mounted in spacedparallel guide plates 31 on the upper overhanging portion of thesupporting frame. The head 29 carries the staple forming and receivingelement 24, and the head 30 carries the staple driver 32 which isreciprocative within and longitudinally of said element. The heads 29and 30 are reciprocated vertically in any usual or approved manner. Invthe present instance the head 29 is connected by means of a link 33 withone arm of a rock lever 34 which is fulcrumed on the supporting iframeand is connected by means of a link 35 with a peripheral lug on a cam 36on an upper driven shaft 37 of the brush machine. The head 30 isconnected by means of a linl 38 with the arm 39 of a crank lever whichis tulcrumed at 40 on the lever 34. The other arm 4l of this crank leveris provided with a roll 42 which runs in a fixed cam race 43 on the sideof the supporting frame, said race being of such contour that during theoscillation of the rock lever 39 to effect the vertical reciprocationsof its staple driver the crank lever is actuated to impart the requisitereciprocations to the heads 29 and 30.

In accordance with the principle of my invention the sta-ple forming andtu'ft receiving element 24 carried by the head 29 comprises a pendanthollow spindle the upper end of which is rotatably mounted in the head29. The lower portion of the spindle is reduced and bifurcated, as at44, to provide a staple and tuft receiving foot whereof the innervertical walls are grooved, as at 45, to support and guide the staple.

Fast on the spindle is a bevel gear 46 which is seated between the wallsof a recess 47 in the head 29 and meshes with a gear segment 48 formedon or aiiixed to a rock lever 49 fulcrumed on the head 29. A spring 50secured to one of the arms of the lever 49 and to the link 38 tends tomaintain the rock lever in a normal horizontal position with thebifui-cated end of the spindle in proper position to receive the stapleand wisp, but when the lever is tilted more or less on its fulcrum thesegment 48 effects the partial turning of the gear 46 and the attachedspindle to vary the position of the bifurcated end of the latter andtherewith the contained staple and wisp.

The means herein illustrated for tilting the lever 48 at statedintervals includes a lrngedly-supported vertical plate 51 havingadjacent its lower end a relatively long inclined cam portion 52 mergingwith a vertical portion 53, which portions, by actuation Cir of theplate, may be swung into or from the downward path or" the tree arm oithe rock lever 49, as desired. This arm is provided with a roll 5d whichabuts against the opposing cam portion 52 during the descent of the headafter the staple has been formed and he tutt engaged by the lower end ofthe spindle, thus moving such arm upwardly and partially turning thegear segment t8 in a manner partially to rotate the spindle. As the head29 continues and until it reaches the limit of its descent the roll 5dbears against the vertical portion 53 oi the plate 5l, which portionthus holds the rock-lever in the inclined position. lin the ascent ofthe head 29, the roll escapes the cam port-ion 52 ot the plate 5l,whereupon the spring 50 returns the rock-lever and perforce the spindleto their normal or tutt-engaging position.

The periodical movement ot the cani plate 5l with respect to the path ofthe rock lever i9 is eected through connections between theplate and asuitable control cam 55 on a driven shaft oi the brush machine, whichshattin the present instance is the shaft 2l on which is mounted theusual pattern cam 56 for determining` the various positions or the brushback table.

rlhe cam plate 5l is supported by a pair oi' rods 57 projectingfrom avertical shaft pintle 58 which has its bearings in brackets 59 on thesupporting frame 20. Projecting from the shaft 58 is an arm 66 which isconnected by means of a link 61 with the upper arm ot a vertical rocklever 62. This lever is pivoted at 63 on a bracket l on the supporting`frame. The lower arm of the lever 62 is connected by a link 65 with theupper arm of a` lever 66 which is iulcrumed at 67 on the frame 20, andthe lower arm et the lever 66 is provided with a roll 66which is held inoperative contact with the control cam 55 by means of a suitablydisposed spring 69. The peripheral contour ot the cam 55 is such as toeffect in conjunction with the spring' 69 predetermined oscillations ornthe lever 66 to position the plate 5l with its cani portions 52 and 53in or out or" the path ot t-he roll 68 ot the rock lever 66 as any particular form of brush back may require.

ln order to insure the horizontal setting ot the rock lever 66 at theend ot its upward stroke, should the spring tail 'to operate, anabutment 70 for the roll of such lever is arranged at the upper portionor" the plate, which abutment preferably comprises the horizontal memberoi' an angle piece 7l which is adjustably secured to the plate by screws72 passing thereinto through vertical slots 73 in the angle-piece.

During the descent of the spindle 28 while the machine is in operationthe bristles en- `caged thereby are temporarily clamped in the spindleby a biiurcated foot 74 on the depending arm of a lever 75 which isfulcrumed, at 7 6, in a vertical groove Z7 in the side of the spindle. Asuitably disposed spring 78 interposed between the tioor of the grooveand the upper arm of the lever 75 urges the foot le to clamping,`position in relation to the biiurcated portion ot the spindle. rilieupper end of the lever 7 5 is acted upon by a depending` presser arm 79which is pivotcd at upper end, as at 80, to a lug,l l on the head 29,which presser arm is reiprocated by and with the head. A spring 2 seatedin a socket in the lug 8l bears gainsr die arm 79 and urges it outward.he .ut-er edge oi the arm is a projection which during' the non-rotativetravel of ,i `ndle 2li bears against the opposing l si ace ot a plate 6ifastened to the cnt plate 3l, thus forcing` the r vssei arm 'l' 9inwardly and swinging the munir; foot oi the lever 75 outward to ermitdie bilurcatec end of the spindle to ceive the staple and the bristles.This done.

lfection S3 escapes the lower end of immediately before the spindle andin coi quence the clamping lever 75 resumes its normal position andclamps the bristles. ln the upward stroke oi the spindle after theinsertion of the brisback the projection S3 of s against the tace of theplate ne clamping lever 75 to its plate 5l is swung,` from its outerposition t its full inner position, (as shown in Jfull and dotted lines,respectively, in Fig. 6) the cam portions tit the rock lever to such anextent as to impart a halt turn to the spindle and the staple and tuitcarried thereby, thus reversing` the position of the but-t end ot thebristles with respect t the brush back; and when the cam plate isswungfrom its outer or inactive position to various active innerpositions the cam por tions tilt the cam lever to a correspondingsmaller extent, thus imparting relatively smaller rotative movements tothe spindle and the associated staple and tutt.

ln lll l have illustrated the back of a iloor sweep showing' thedisposition ot the tutt receiving' holes therein. In the formation ot'these holes,` and also in the insertion ot the tufts therein, theoperation in each case starts at the point a at one side ot the back andmidway between its ends, and continues intermittently throughout onehalf oi the area of the back, as indicated by the successive arrowspointing` from hole to hole until the point l) is reached. ln its travelin the longitudinal direction, indicated by the arrow c. the series ofholes on one side of the median longitudinal line of the back are formedand the tufts inserted therein, and at the limit ot this travel the rowor" holes CZ at the end ot the back are formed and the tufts thereininserted until the point e is reached,

whereupon the direction of longitudinal travel of the back is reversed,as indicated by the arrow In this reverse travel the series of holes onthe other or rear side of the median longitudinal line are formed andthe tufts inserted therein, thus completing Ehe lling operation inone-half of the brush ack.

This done, the brush back is removed from its support and positionedthereon with the opposite end of the block reversed. The operation isthen resumed, starting at the point aa and ending at the point bb, thuscompletin the filling operation.

uring the tuft inserting operation on each portion of the area of theblock face, the spindle first reciprocates in a straight path andpositions each succeeding bunch of bristles with its butt end extendinginwardly, so that when the bristles are inserted in the adjacent holeand stapled therein the butt end of the tuft is on the inner side of theupstanding tuft. Vhen the end of the block is reached the cam plate 51is swung parti als 1y inward to effect a partial rotation of the spindlesuficient to position the bristles with their butts extending inwardlyof the brush back, the extent of rotary movement being determined by thecontour of the end of the brush. When the end bristles have beeninserted in the back, the cam plate 51 is swnn g fully inward and theremaintained until the point b or b?) is reached, as the case may be,depending upon which end of the block is belng filled. Hence during thisoperation the bristles engaged by the spindle are given a semi-rotationso as to yreverse the position of the butt end of each tuft with respectto the brush back, thus ensuring the inward disposition of the butts.(Sec Fig. 15.)

In accordance with my invention means is provided whereby the adjacentpreviously inserted upstanding tuft is moved from the active path of thespindle during the setting of each succeeding tuft, irrespective of thedirection of travel of the brush back, so as to permit the free passageof the latter tuft to the surface of the back, which means is asfollows:

Referring to Figs. 1, 2, 3, 7, 10 and 11, 85 and 86 designate two airblast tubes havingr their respective nozzles 37 and 88 located above thepath of the brush back and directed toward opposite sides of thevertical path of the tuft setting spindle in a plane below the tops ofthe inserted bristles. The tubes and 8G are connected to an air supplyline 89 and are provided with normally closed valves 90 and 91,respectively, the reciprocable stems 92 of which valves areindependently operable to permit the escape of air under pressure fromeither of the nozzles, desired, thus blowing the opposing npstandingtuft away from the vertical path of the setting end of the spindleaccording to the direction of travel of the brush back. To this end apair of spaced toes 93 and 94 are movable laterally toward and from thetops of the respective valve stems in such manner that when one toe isdirectly above one valve stem the other toe is laterally away from theother valve stem, The two toes are al'iixed to and project from a shaft95 which is slidable and rockable in a pair of bearings 90 in asuitably-disposed bracket 97 on the frame 20. One end of the shaft 95 isprovided with an npstanding pin 98 which is engaged by the bifurcatedarm 99 of a horizontally-disposcd bell-crank fulcrumed on a bracket A100on the frame 20. The other arm 101 of the belLcrank extends into thepath of a vertical trip lever 102 pivoted, as at 103, on a laterallyprojecting bracket 104 on the link 65 which is included in theconnections for operating the cam plate A suitably-disposed torsionspring 105 on the pivot of the trip lever tends to hold the latter invertical position with its lower end in operative relation to the cranklever arm 101 and its upper portion in Contact with a stop 106011 thebracket 101. Hence the spring pressed trip lever tends to maintain thebell crank in a normal position with the toes 93 and 94: in active andinactive relation to the respective valve stems 92. The relation of theparts just referred to is such that when the cam plate 5l is in inactiveposition in respect to the roll 51 on the rock lever L9 of the tnftinserting devices, the trip lever 102 depends in front of the crank arm101, seen in Fig. 8, and therefore when the link 69 is moved to swingthe cam plate 51 to inward active position, as detern'iined by thecontour of the control cam 55, the depending trip lever 102 iscorrespondingly moved. ,1n its initial movement the lower arm of thetrip lever presses against and swings the opposing crank-arm 101, thusmoving the shaft longitudinally and shifting the toes` 93 and 94 thereofto change their active and ina ctivc positions relative to the adjacentvalve stems. As the stroke of the link (i5 and trip lever 102 continues,the lower arm of the trip lever rides over and escapes the crank arm101; thc latter and the shaft 95 together with the toes 93 and 94 thusresuming their normal condition. In the next succeeding stroke of thelink 65 the trip lever 102 bears against the opposing crank arm 101 thusmoving the arm and shifting the shaft 95 to return the toes 93 and 94 totheir previous active and inactive positions relative to the respectivevalve stems 92, the trip lever riding over the crank arm 101 andassuming the position shown in Fig. 8.

At predetermined intervals during the operation of the machine the shaft95 is rocked on its axis, thus causing the active toe to bear upon theunderlying valve stem and open the associated valve. To this end thenpstanding pin 98 on the shaft 95 is extended freely through an eye 107in the foot 10S of a vertical lever 109 which is fulcrumed, as at110, ona bracket 111 on the frame 20. A spring 112l secured to the lever 109and to the frame tends to urge the lever to a position which maintainsthe toes 93 and 04 of the shaft 95 raised. The upper end of the lever109 is curved, as at 113, into the pat-h of a projection 114 on the cam3G which effects the periodical' reciprocations of the tuft setting andstaple driving members. As these members approach the limit of theirdescent the projection 111i bears against the opposed curved end of thelever 109 and swings it outward, thus causing the lower arm of the leverthrough its flexible connection with the shaft 95, to rock the latterand sWi the toes downward.

In the travel of the brush back shown in Fig. 1e between the points cand c and in the direction of the arrow c, the valve 91 is maintainedopen. and in consequence a continuous blast of air is ejected throughthe nozzle 88, thus forcing baclr the opposing upstanding tuft from thevertical path of the spindle in each succeeding` tuftsetting stroke, asindicated in Fig. 10. At the point c the valve 91 is closed and thevalve is opened and maintained in open position during the travel of theback in the direction of the ow 7 to the point and in consequence acontinuous blast of air is ejected through the nozzle 87, thus forcingback each opposing upstanding tuft from the vertical path of the spindlein each suceeding tuft-setting operation, as indicated in 11. The valvesare similarlj,r operated in timed relation to the reciprocations of thespindle during the filling of each half o-f the brush baclr.

It is to be understood that my invention is not limited to theparticular construction disclosed, as the mechanisms may be modifiedWithin the principle of the invention and the scope of the appendedclaims.

l claim 1. In a brush machine, the combination with a brush-back feedingtable, for feeding brush material to tuft-setting position, and areciprocating tutt-setting tool for engaging the positioned brushmaterial adiacent one end of the material, ofk means for oscillating'said tool about its longitudinal anis at prescribed intervals during thetuftsetting operation.

2. In a brush machine, the combination With a brush-bach feeding table,means for feeding brush material to stuft-setting position, an elementhaving a bifurcated stapleforming and tuff-receiving portione a stapledriver in said element, means for independently reciprocating' saidelement and staple driver. of means for oscillating said elem-ent aboutits'longitudinal axis at prescribed intervals during the tuft-settingoperation.

3. In a. brush machine, the combination with brushbacl feeding mechanismincluding a table and a rotary pattern cam for determining the positionsof the table, means for feeding brush material to tuft-setting posi*tion, and a reciprocating tuft-setting tool for engaging the positionedbrush material adjacent one end of the material, of means foroscillating said tool about its longitudinal axis at prescribedintervals during the tuftsetting operation and including a rota-rycontrol cam in timed relation to the said pattern cam.

e. ln a brush machine, the combination with a brush-back feeding` table,means for feeding brush material to tuft-setting position, and areciprocating tuft-setting tool for engaging the positioned brushmaterial adjacent one end of the material, of means for oscillating saidtool about its longitudinal axis at prescribed intervals during thetuftsetting operation and including a cam-engaging member reciprocablewith the tool` a cam movable into and from the path of said member, andmeans for automatically shifting said cam.

5. In a brush machine, the combination with a brush-back feeding table,means for feeding brush material to tutt-setting position, and areciprocating tuft-setting tool for engaging the positioned brushmaterial adi acent one end of the material, of means for oscillatingsaid tool about its longitudinal at prescribed intervals during thetuftsetting operation and including` co-acting gear members reciprocableWith the tool, a rock member for actuating one of said gears, a cammovable into and from the path of the rock member, and means forautomatically shifting said cam.

6. In a brush machine, the combination With a brush-back feeding table,means for feeding brush material to tuft-setting position, and areciprocating Jruft-setting tool for engaging' the positioned brushmaterial adjacent one end of the material, of means for oscillating saidtool about its longitudinal axis at prescribed intervals during thetuftsetting operation and including a gear member on the tool, a secondgear member coacting with the other member and reciprocable with thetool, a rock member for actuating the second gear member, a hingedlymounted cam member movable into and from the path of the rock member,and means for automatically swinging said cam member.

7; ln a brush machine, the combination with a brush-back feeding table,means for feeding brush material to tuft-setting position, and areciprocating tuft-setting tool having a bifurcated end for engaging thepositioned brush material adjacent one end of the material, of means foroscillating said tool at prescribed intervals in the lower portion ofits path of reciprocation, a tuft- A clamping member reciprocable withsaid tool Y scribed intervals during the tutt-setting and having a footin cooperative relation to the bifurcated end of the tool, and meanswhereby the clamping member is periodically moved to clamping andreleasing positions during the reciprocation of thertool.

8. In a brush machine, the'combination with a brush-back feeding table,means for feeding brush material to tutt-setting position, and areciprocating VYtutt-setting tool for engaging Ythe positioned materialadjacent one end of the material, of pneumatic means for delivering ablast of air against the oposing previously inserted tuft and therebyorcing such tuft from the active path of said tool during the setting ofeach succeeding tuft in the brush back, and including two spaced blastnozzles on opposite sides'respectively of the path of the tool adjacentthe back, and means for rendering either of said nozzles active orinactive in accordance Withthe direction of travel of the brush back. fY

9. In a brush machine, the combination with a brush-'back feeding table,means for feeding brush material to tutt-setting position, areciprocating tuft-setting tool for engaging the positioned materialadjacent one end of the material, and means for oscillating said tool onits longitudinal axis at preoperation, of pneumatic means for deliveringa blast of air against the opposing previously inserted tuft and therebyforcing such tuft from the active path of said tool during the settingof each succeeding tuft in the brush back, and including two spacedblast nozzles on opposite sides respectively of the path of the tooladjacent the back, and means under the control of the tool oscillatingmeans for rendering either of said nozzles active or inactive inaccordance with the direction of travel of the brush back.

10. In a brush machine, the combination with a brush-back feeding table,means for feeding brush material to tuft-setting position, and areciprocating tuft-setting tool for engaging the positioned materialadjacent one end of the material, of pneumatic means for delivering ablast of air against the opposing previously inserted tuft and therebyforcing such tuft from the active path of said tool during the settingof each succeeding tuft in the brush back, and including a pair of airpipes having spaced blast nozzles on opposite sides respectively of thepath of the tool adjacent the back, normally-closed valves for therespective pipes, pressure members for opening the respective valves,and means for actuating said pressure members to open either of saidnozzles in accordance with the direction of movement of the brush back.

11. In a brush machine, the combination with a brush-back feeding table,means for feeding brush material to tutt-setting position, and areciprocating tuft-setting tool for engaging the positioned materialadjacent one end of the material, of pneumatic means for delivering ablast of air against the opposing Ypreviously inserted tuft and therebyforcing such tuft from the active path of said tool during the settingof each succeeding tuft in the brush back, and including a pair ot' airpipes having spaced blast nozzles on opposite sides respectively of thepath of the tool adjacent the back, normally-closed valves for therespective pipes, a longitudinally-movable rock-shaft, spaced pressuremembers on said shaft, an actuating member operatively connected withsaid shaft for longitudinally moving the shaft to position the pressuremembers in active'and inactive relation to the respective valves, andmeans for operating said actuating member at prescribed intervals duringthe tuft-setting operation.

12. In a brush machine, the combination with a brush-back feedingtable,'means for feeding horizontally-disposed brush material totuft-setting position, and a vertically reciprocating tuft-setting toolfor engaging the positioned brush material adjacent one end of thematerial, of means for automatically effecting relative oscillatorymovement between said tool andthe table at prescribed intervals duringthe tuft-setting operation whereby the upstanding butt ends of the tuftscan be positioned on the inner sides of said tufts throughout the areaof the brush back.

Signed at Frederick, in the county of Frederick and State of Maryland,this 10th day of February, A. D. 1932.

WILLIAM D. LIPPS.

